Kappaphycus alvarezii sap mitigates abiotic-induced stress in Triticum durum by modulating metabolic coordination and improves growth and yield

Patel, Khantika; Agarwal, Parinita; Agarwal, Pradeep K.

doi:10.1007/s10811-018-1423-4

Cited by 50 publications

(30 citation statements)

References 47 publications

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“…Moreover, an Ascophyllum nodosum extract decreased H 2 O 2 content of Salam turfgrass plants, and increased CAT and APX activity and its ascorbate content in comparison with the control [51]. On a related note, Patel et al [52] assessed the potential of Kappaphycus alvarezii sap (K sap) on alleviating salt and drought stress from three durum wheat varieties during vegetative and reproductive stages. K sap enhanced morphological parameters of durum wheat (shoot and root length and weight) in comparison to stressed plants.…”

Section: Biostimulant Properties Of Seaweed Extract Are Emphasized Unmentioning

confidence: 99%

“…The later, was the only gene that was upregulated in comparison to the control when the treatment was applied alone. Consequently, the authors suggested that the induction of phytohormones after the application of K sap could be the cause of the genes and transcription factors upregulation under stress conditions [52]. Additionally, tomato plants were treated with seaweed extracts based on Ascophyllum nodosum (AN1, AN2, and AN3) before and after applying a drought stress by withdrawing water during a period of 7 days.…”

Section: Mechanism Of Action Under Abiotic Stressmentioning

confidence: 99%

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Trends in Seaweed Extract Based Biostimulants: Manufacturing Process and Beneficial Effect on Soil-Plant Systems

Boukhari

Barakate

Bouhia

et al. 2020

Plants

191

129

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The time when plant biostimulants were considered as “snake oil” is erstwhile and the skepticism regarding their agricultural benefits has significantly faded, as solid scientific evidences of their positive effects are continuously provided. Currently plant biostimulants are considered as a full-fledged class of agri-inputs and highly attractive business opportunity for major actors of the agroindustry. As the dominant category of the biostimulant segment, seaweed extracts were key in this growing renown. They are widely known as substances with the function of mitigating abiotic stress and enhancing plant productivity. Seaweed extracts are derived from the extraction of several macroalgae species, which depending on the extraction methodology lead to the production of complex mixtures of biologically active compounds. Consequently, plant responses are often inconsistent, and precisely deciphering the involved mechanism of action remains highly intricate. Recently, scientists all over the world have been interested to exploring hidden mechanism of action of these resources through the employment of multidisciplinary and high-throughput approaches, combining plant physiology, molecular biology, agronomy, and multi-omics techniques. The aim of this review is to provide fresh insights into the concept of seaweed extract (SE), through addressing the subject in newfangled standpoints based on current scientific knowledge, and taking into consideration both academic and industrial claims in concomitance with market’s requirements. The crucial extraction process as well as the effect of such products on nutrient uptake and their role in abiotic and biotic stress tolerance are scrutinized with emphasizing the involved mechanisms at the metabolic and genetic level. Additionally, some often overlooked and indirect effects of seaweed extracts, such as their influence on plant microbiome are discussed. Finally, the plausible impact of the recently approved plant biostimulant regulation on seaweed extract industry is addressed.

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Section: Biostimulant Properties Of Seaweed Extract Are Emphasized Unmentioning

confidence: 99%

Section: Mechanism Of Action Under Abiotic Stressmentioning

confidence: 99%

Trends in Seaweed Extract Based Biostimulants: Manufacturing Process and Beneficial Effect on Soil-Plant Systems

Boukhari

Barakate

Bouhia

et al. 2020

Plants

191

129

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“…[ 28 , 29 , 30 , 31 , 32 ]. Other common species include Fucus serratus , Ulva lactuca, and Kappaphycus alvarezii [ 33 , 34 , 35 , 36 , 37 , 38 ]. The majority of commercially available algal-based biostimulants are aqueous extracts.…”

Section: Extraction Techniques Chemical Characteristics Of Macroamentioning

confidence: 99%

“…The application of Dunaliella salina sulphated exopolysaccharides to tomato plants activated antioxidant activities and increased shoot and root lengths and dry and fresh matters [ 120 ]. An extract from the red alga Kappaphycus alverezii was supplied to three commercial durum wheat varieties under salinity and drought stress during both vegetative and reproductive growth phases [ 36 ]. These extracts contain high amounts of carrageenan, a seaweed phycocolloid, and plant growth regulators, such as IAA, kinetin, trans-zeatin, and GA3.…”

Section: Mechanisms Of Salinity Stress Tolerance In Macro and Micrmentioning

confidence: 99%

“…Their application reduced the ionic imbalance and ROS concentration by increasing the potassium to sodium ratio (K/Na) as well as the content of calcium osmoprotectants, proline, total protein, and free amino acids. These consequently increased shoot and root length and weight, total chlorophyll, and carotenoids, while decreased electrolyte leakage and lipid peroxidation in durum wheat [ 36 ]. The regular and constant application of seaweed extract and humic acid on creeping bentgrass increased the superoxide dismutase (SOD) activity (47% and 181%) together with photosynthesis improvement [ 110 ].…”

Section: Mechanisms Of Salinity Stress Tolerance In Macro and Micrmentioning

confidence: 99%

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Enhancing Sustainability by Improving Plant Salt Tolerance through Macro- and Micro-Algal Biostimulants

Carillo

Ciarmiello

Woodrow

et al. 2020

Biology

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Algal biomass, extracts, or derivatives have long been considered a valuable material to bring benefits to humans and cultivated plants. In the last decades, it became evident that algal formulations can induce multiple effects on crops (including an increase in biomass, yield, and quality), and that algal extracts contain a series of bioactive compounds and signaling molecules, in addition to mineral and organic nutrients. The need to reduce the non-renewable chemical input in agriculture has recently prompted an increase in the use of algal extracts as a plant biostimulant, also because of their ability to promote plant growth in suboptimal conditions such as saline environments is beneficial. In this article, we discuss some research areas that are critical for the implementation in agriculture of macro- and microalgae extracts as plant biostimulants. Specifically, we provide an overview of current knowledge and achievements about extraction methods, compositions, and action mechanisms of algal extracts, focusing on salt-stress tolerance. We also outline current limitations and possible research avenues. We conclude that the comparison and the integration of knowledge on the molecular and physiological response of plants to salt and to algal extracts should also guide the extraction procedures and application methods. The effects of algal biostimulants have been mainly investigated from an applied perspective, and the exploitation of different scientific disciplines is still much needed for the development of new sustainable strategies to increase crop tolerance to salt stress.

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Biostimulants and Plant Response Under Adverse Environmental Conditions: A Functional Interplay

Ertani

Bulgari

Franzoni

et al. 2021

Plant Performance Under Environmental Stress

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Kappaphycus alvarezii sap mitigates abiotic-induced stress in Triticum durum by modulating metabolic coordination and improves growth and yield

Cited by 50 publications

References 47 publications

Trends in Seaweed Extract Based Biostimulants: Manufacturing Process and Beneficial Effect on Soil-Plant Systems

Trends in Seaweed Extract Based Biostimulants: Manufacturing Process and Beneficial Effect on Soil-Plant Systems

Enhancing Sustainability by Improving Plant Salt Tolerance through Macro- and Micro-Algal Biostimulants

Biostimulants and Plant Response Under Adverse Environmental Conditions: A Functional Interplay

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